Nomenclature
CAS number: 7786-81-4
Sulfuric acid nickel(2+) salt (1:1).
NiO
4S; mol wt 154.76.
Ni 37.93%, O 41.35%, S 20.72%.
NiSO
4.
Description and references
Soly study: F. C. Vilbrandt, J. A. Bender, Ind. Eng. Chem. 15, 967 (1923).
Specific gravity, viscosity, and soly of aqueous solns of α-hexahydrate:
V. R. Phillips, J. Chem. Eng. Data 17, 357 (1972). Thermal dehydration study of α-hexahydrate:
N. Koga, H. Tanaka, J. Phys. Chem. 98, 10521 (1994). Acute toxicity data: E. L. Reagan, J. Am. Coll. Toxicol. 1, 685 (1992).
Evaluation of carcinogenic risk: IARC Monographs 49, 257-445 (1990); Toxicology
and Carcinogenesis Studies (NTP TR-454, NIH 96-3370, 1996)
379 pp. Use in patch testing for nickel allergies: V. Simonetti et al., Contact Dermatitis 39, 187 (1998). Review of toxicology and human exposure:
Toxicological Profile for Nickel (PB2006-100005, 2005) 397 pp.
Properties
Pale green to yellow crystals; dec at 848°. Soly
at 20° (g/l): water 293. Insol in ethanol, diethyl ether.Derivative
Hexahydrate.
Nomenclature
CAS number: 10101-97-0
NiO
4S.6H
2O; mol wt 262.85.
Ni 22.33%, O 60.87%, S 12.20%, H 4.60%.
Properties
Two known phases. α-Form, blue to blue-green
tetragonal crystals; transition to β-form at 53.3°. β-Form, green
transparent crystals. α-Form is more stable; commercially available.
d 2.07. Soly in water
of α-form (g anhydrous salt/100 g water) at 50.00°: 52.267; of β-form
at 60.11°: 55.557. Sol in ethanol. pH of 5% soln at 25°: 3.8.
LD50 in male, female rats (mg/kg): 335, 264 orally (Reagan).Derivative
Heptahydrate.
Nomenclature
CAS number: 10101-98-1
NiO
4S.7H
2O; mol wt 280.86.
Ni 20.90%, O 62.66%, S 11.42%, H 5.02%.
Properties
Green, orthorhombic crystals; efflorescent. Soly
in water (g anhydrous salt/100 g water) at 0.00°: 26.189; at 25.00°:
40.469. Sol in ethanol.Caution
Nickel compounds are listed as known
human carcinogens: Report on Carcinogens,
Eleventh Edition (PB2005-104914, 2004) p III-181.Use
In electrolytic and electroless nickel-plating;
as mordant in dyeing; in catalyst mfr; in prepn of other nickel compds.
Therapeutic Category
Diagnostic aid (contact allergen).
Keywords
Diagnostic Aid